Wick-stop.



L. S. CHADWlCK WICK STOP.

APPUCATION FILED AUG.2. 1915.

Patente Mar. 5,1918.

2 SHEETS-SHEET 1- BIDOOOOO OOGIO OOOQIOI L. S. CHADWICK.

WICK STOP APPLICATION FILED AUG-2' I915- 1,258,395. Patented Mar. 5, 1918.

2 SHEETS-$HEET 2.

UNITED STATES PATENT onnron.

:tnn s. oHnnwIcK, or cnnvnnnnn, 01-110, nssrenon [110 one CLEVELAND METAL rnonucrs COMPANY, or CLEVELAND, cure, a CORPORATION or 01110.

WICK-STOIP.

Specification of Letters Iatent.

Patented Mainfi, 1918.

To aid whom it may concern:

Be it known that I, Ln S. (hmcwi'on, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in "Wick-Stops, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates to that class of oil burners comprising, generally, an inner and an outer wick tube between which a wick is guided and above which coininingling tubes are supported in operative relation to the Wick, the connningling tubes being inclosed in a drum. Suitable means for supplying oil to the wick is communicatively connected to one of the wick tubes; and further means is employed for elevating and lowering the wick.

More particularly, the invention relates to a wick stop for burners of the class above referred to; and it has for its object the provision of a highly el'licient wick stop that may be economically manufactured and which, in its preferred form, may be dropped into the upper end of the inner wick tube and allowed to settle by gravity into its properposition, the wick stop and the aforesaid wick tube having cooperating portions which interlock as the stop assumes its final position, thereby to effectually hold the stop against elevation.

In the accompanying drawings I have illustrated a Wick stop associated with a burner of the above mentioned type, and wherein the above, and other objects which will become apparent as this description proceeds, are attained. During the course of the specification I will describe in detail the wick sto shown herein, although I wish to be cut erstood as not limiting myself to the structural details thereoffurthcr than is required by the terms of the annexed claims and is rendered necessary by the state of the prior art. y

In the drawings, Figure 1 1s a central vertical section through an oil burner equipped with a wick stop of my invention; Fig. 2 is a plan view of the burner and wick stop, with the coinlninghng tubes and drunure moved; Fig. 3 is a horizontal sectionalmew on the line 3-3 of Fig. 1, and looking 1n the direction of the arrows, the drum bei'n omitted from this figure; Fig. 4: is a centred sectional detail through the upper portion of the wick tubes and wick and shows the wick stop and coiipcrating parts of the wick tube in elevation; and Fig. 5 is a perspective view of the wick stop.

Taking up a detailed description of the invention by the use of reference characters, 1 represents the outer and the inner wick tube which are connected by having the lower end of the outer wick tube turned inward and upward into contact with the in nor wick tube, as shown at 3, the overlying portions of the wick tubes being preferably soldered to seal the wick spaceinclosed by the tubes,against leakage. A short distance below their upper ends and in about the same horizontal plane, the outer and inner wick tubes are provided. with ledges 5 and 6, respectively, whereon the lower ends of the respective outer and inner connningling tubes 7 and 8 are arranged to rest. The conuningling tubes are shown as connected together in the usual manner by the rods 9 and 10, and these rods also support the drum 11, that is shown as provided with a handle 12, whereby the drum may be conveniently manipulated.

The inner coinminglin tube has a perforated cover 15, and its lower end is pro vided with a perforated diaphragm 16,haviug a centrally located thilnble 17, the recess 18 of which opens downward for the reception of the upper end of a lifter rod 530 that is guided through a strap 21 that spans the inner wick tube, near its lower end, and through the circular wall 22 of an inverted cup-shaped member 23, supported from the wall of the inner wick tube by braces 24, that may be riveted to the cylindrical wall of the aforesaid member, as shown at 25, and fastened to the wick tube by soldering or other suitable means. The lower end of the lifter rod 20 is turned laterallythrough a slot 27 within a depending portion 28 of the strap 21. This drum lifting mechanism constitutes no part of my present invention, and it is therefore deemed unnecessary to describe it further, although it will be stated, in order to avoid any possible confusion as to the physics and theory of operation of the burner, that the strap 21 is narrow and does not, in any way,

obstruct the free passage of air upward through the inner wick tube. The outer wick tube has secured to it the usual wick The wick stop is shown generally at40,

and comprises an annulus to which the reference numeral 40 is applied, and which is made up of a vertical wall and a horizontal wall that are substantiallyat" right angles to each other. This annulus constitutes the body portion of the wick stop, andfrom the upper edgeof its vertical wall project the stop fingers 41. These fingers extend upward and then outward over the path ofthe wick, and determine itsmaximum elevation. Depending fromithe inner periphery oi' the annulus are anchoragemembers orl1ooks42, theirifront and rear edges 43-and 44, respectively, diverging u wardly from their rounded lower ends. T to front edgecf each anchoragemember is cutinward a short distance from its lowerend, and then upward, to produce a hook or shoulder 45. g

It will befiobserved that the cup shaped member 23 consists of two cylindrical portions of varying. diameterswherefore a horizontal,'annular wall 47 is formed, and this wall is provided with a series of slots 48 into Which'the lower ends of the anchorage members 42 are arranged to descend, as the annulus. ofthe wick stop settles by gravity into contact with the ledge Bot the inner wick tube. 1 Attention is invited to the fact that the length of'the slots 48 are substantially equal to the horizontal dimension of the anchorage members in the zone of their shoulders 45.

When the wick stop is insertedinto the inner wick tube, it requires only sufficient attention on the part ofthe operator to see that the lower ends of the'anchorage members enter the slots. plished ,by the 'operator simply placing the wick stop within the wick tube until the lower endsof :theanchorage members abut the wall47 of the member 23,? whereupon the wick stop may be rotated until the anchorage members are felt to pass. downward through the. slots. As soon as. this proper registration is made, the remainder of the operation becomes automatic, for the gravity of the stop willcause it to descend,and the inclination of the front and rear edges of the anchorage members will cause them to find their proper position with respect to the slots 48. For example, if the anchorage members enter the-slots so that their front edges 43 come into contact with the I corresponding ends of the slots, the/wick stop will be rotated backward until the pointsad-jacent the shoulders 45 pass the atoresaidendsof theslots and drop beneath the same. Immediately, the rotation. of the member will be reversed by the engagement This may be accomof the rear edges 44 of the anchorage members with the opposite endsof the slots 48, saidhinclined edges 4-4eactingaas oams to actively project the shoulders 45 beneath the adjacent ends of the slots, When in this position, the wick stop is held against appre- ClitblBgtlPYVitlCl movement, so that the wick may be elevated by the means 30 until its upwarcbmovement is arrested by the fingers 41.

lVhile it was explained that the. lower ends of the comminglingtubeskrest'uponthe edges '5 "and 6 it willlbe understood tronrthe ill u strationthat, whenxth'e wick. stop is pres ent, the horizontal wall of itsannulus40 will" contact directly with the ledge "6 iofthe inner wicktube,"while the lower end of the coinmingliiig' tube 18 will 'rest 'upon theupper surface of said' horizontal wa'll. A slightn-elative longitudinalv" movement between the comminglihgtubes"is provided by makingthe aperturesof-the inner commin= gling tube through which therods Wand-10 pass, slightlyelongated, asillustratedfi The same result would obviously be-"accomplished if'the reverse were *true and the outer: com mingling, tube provided w-ith the. elongated op en1ngs.n

It is clear that-the cup=shaped member 23 serves the three fold purpose ofguidihg {the lifter rod 20,1 of formingza-loclr for the wick stop, and" of sdeflecting tlie air-which" rises through the inner wick tube and directing it into close: proximity tothe- -upper end thereof, thereby "to retainthe tem perature of the wick "tube"at tlie-"minimum, degree. However, as far as my present invention is concerned, any means which will answer the purpose" of "retaining ithe rwick isto'p against elevation, and whichwillbooperate with the anchorage membersthereof substantially in the manner describedjwill beconsideredthe full. equivalent "of tbe cupfshaped member, so long falls -within' the" terms of- "the annexed "claims:

Having thusdescribe'd my invention, what I claim is 1. The combination :withia burner of are cla ss described; the inner; wick tube-whereof is providedwith a. ledge adjacent its upper end, of an annulus wbiclris arranged totbe inserted into the: upper "end" of said wick tube and repos'e upon-said ledge, the annulus havinga plurality :offingerswhichradt ate therefrom-and"overliethe path of the wick, a member supported within the inner wick tube and below the-' aforesaidledge, said member 1 having a wall that extend-s transversely of the inner wick tube and that is provided"with*a-plurality-of slots, meannulus having a "plurality of dependinganchorage membersthat are adapted i each to enter one of the aforesaid sl'ots, each anchorage memberhaving opposed'edges which di- Ilt shoulder that is adapted to be projected beneath the aforesaid wall adjacent one end of the slot when the other edge of said member engages and traverses the opposite end of the slot.

2-. The combination with a burner of the class described having a support within the inner wick tube, of an annulus arranged to repose upon said support, the annulus having a plurality of fingers which overlie the path of the wick, opposed abutments supported within the inner wick tube, the annulus having an anchorage member that is adapted to enter between sald abutments and having opposed edges which diverge upwardly, one of said edges having a shoulder that is projected beneath one of the abutments when the other ed e of said member engages and traverses t 1e opposite abutment.

3. The combination with a burner of the class described, the inner wick tube whereof end, of an annulus arranged to repose upon said led e, the annulus having fingers that overlie t e path of the wick, a member su ported within the inner wick tube below t e aforsaid ledge and having a wall extending transversely of the wick tube and that is provided with slots, the annulushaving dependin anchorage members arranged to enter said slots, each anchorage member having opposed edges which diverge upwardly, one of said edges having a shoulder that is projected beneath the aforesaid wall adjacent one end of the slot when the other edge of said member engages and traverses the opposite end of the slot.

In testimony whereof, I hereunto aflix my signature in the presence of two witnesses.

LEE S. CHADWICK. Witnesses:

W. E. SHEPPARD, J. C. WALLACE.

Copies 01 thh patent may be obtalned tor five cents each, by addressing the Commissioner of Patentn,

Washington, D. 0. 

